State Key Laboratory of Grassland Agro-Ecosystems, Center for Grassland Microbiome, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou Gansu 730000, People's Republic of China.
Grasslands Research Centre, AgResearch, Private Bag 11-008, Palmerston North 4442, New Zealand.
J Agric Food Chem. 2020 Jul 1;68(26):6944-6955. doi: 10.1021/acs.jafc.0c01396. Epub 2020 Jun 18.
The past decade has witnessed significant advances in understanding the interaction between grasses and systemic fungal endophytes of the genus , with evidence that plants have evolved multiple strategies to cope with abiotic stresses by reprogramming physiological responses. Soil nutrients directly affect plant growth, while soil microbes are also closely connected to plant growth and health. endophytes could affect soil fertility by modifying soil nutrient contents and soil microbial diversity. Therefore, we analyze recent advances in our understanding of the role of endophytes under the various abiotic stresses and the role of grass- symbiosis on soil fertility. Various cool-season grasses are infected by species, which contribute to health, growth, persistence, and seed survival of host grasses by regulating key systems, including photosynthesis, osmotic regulation, and antioxidants and activity of key enzymes of host physiology processes under abiotic stresses. The endophyte offers significant prospects to magnify the crop yield, plant resistance, and food safety in ecological systems by modulating soil physiochemical properties and soil microbes. The enhancing resistance of host grasses to abiotic stresses by an endophyte is a complex manifestation of different physiological and biochemical events through regulating soil properties and soil microbes by the fungal endophyte. The -mediated mechanisms underlying regulation of abiotic stress responses are involved in osmotic adjustment, antioxidant machinery, photosynthetic system, and activity of key enzymes critical in developing plant adaptation strategies to abiotic stress. Therefore, the endophytes are an attractive choice in increasing resistance of plants to abiotic stresses and are also a good candidate for improving soil fertility and regulating microbial diversity to improve plant growth.
过去十年见证了人们对禾本科植物与丛枝菌根真菌相互作用的理解取得了重大进展，有证据表明，植物已经进化出多种策略来通过重新编程生理反应来应对非生物胁迫。土壤养分直接影响植物的生长，而土壤微生物也与植物的生长和健康密切相关。内生真菌可以通过改变土壤养分含量和土壤微生物多样性来影响土壤肥力。因此，我们分析了近年来人们对丛枝菌根真菌在各种非生物胁迫下的作用以及禾本科植物-共生体对土壤肥力的作用的理解的最新进展。各种冷季型禾本科植物都被 种感染，通过调节光合作用、渗透调节和抗氧化剂以及宿主生理过程关键酶的活性等关键系统，为宿主禾本科植物的健康、生长、维持和种子存活做出贡献。内生真菌通过调节土壤理化性质和土壤微生物，为放大生态系统中的作物产量、植物抗性和食品安全提供了重要前景。内生真菌增强宿主禾本科植物对非生物胁迫的抗性是真菌内生菌通过调节土壤特性和土壤微生物来调节不同生理生化事件的复杂表现。丛枝菌根真菌调节非生物胁迫反应的机制涉及渗透调节、抗氧化机制、光合作用系统以及在植物适应非生物胁迫策略的形成中起关键作用的关键酶的活性。因此，内生真菌是提高植物对非生物胁迫抗性的一个有吸引力的选择，也是提高土壤肥力和调节微生物多样性以改善植物生长的良好候选物。
